Orbital Kingdom

#220088

A blue that is saturated. It is dark — it carries white text and needs care with black.

Hex

#220088

RGB

34, 0, 136

OKLCh

30.0% 0.187 276.1°

CIELAB (D50)

14.7, 44.0, -66.6

What is true of this colour, and of no other

  • One other named colour sits within ΔE00 2 of it.
  • It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
  • As text on white it measures APCA Lc 99.7; on black, Lc 0.0. The sign is the polarity, which the WCAG ratio discards.
  • Built into an eleven-step scale, 10 of the 10 adjacent pairs stay ΔE00 2 apart — see the ramp.
  • All three dichromacies see it as very nearly the same colour you do: its hue is not the part carrying its identity.

Text on this colour

White text

14.75:1 — passes AA

Black text

1.42:1 — fails AA

White text is the better of the two at14.75:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#220088

protanopia

#060688 · ΔE00 2.5

deuteranopia

#0f0f88 · ΔE00 3.1

tritanopia

#16167b · ΔE00 4.5

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isDramatic Blue at ΔE00 1.52: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.

7 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.